Privacy Policy

Last updated: November 3, 2026

No Data Collection (Games & Utilities)

Single-player games and utilities on this site run entirely in your browser. No files are uploaded to any server for these. Your data stays on your device. The exception is the multiplayer features noted below.

Multiplayer game sessions

A handful of games (currently Sudoku, Chess and Conquest) support an online multiplayer mode where one player shares a link to invite others. While a session is active, the server stores the session ID, a randomly-generated player ID for each participant, the display name you enter, and the game state (board position, moves, and any in-progress puzzle). No email address, IP-derived identity, or account is required. Session files are automatically deleted 24 hours after the last activity; Conquest games, which are often played over several evenings, are kept for 7 days after the last move.

Demos that upload files for processing

The following demos accept a file upload, process it on a back-end server, and return a result. The uploaded file and any generated outputs are stored temporarily and automatically deleted within 1 hour of processing completion:

Some demos let you choose which back-end machine processes the file (a Windows box or the web server itself); either way the same retention applies — and demos that respond immediately delete the uploaded file as soon as it has been processed, and keep the generated result for up to 1 hour so you can download it.

• Foxit OCR — PDF/image OCR via the Foxit LLM engine
• Foxit OCR (C++) — PDF/image OCR via the classic Foxit C++ engine
• Tesseract OCR — PDF/image OCR via Tesseract
• OCR Compare — uploads a single file to all three OCR engines in parallel
• Foxit Auto-Tag — adds an accessibility structure tree to a PDF
• PDF Flatten — bakes signatures, annotations, and form widgets into the page content
• XFA Flatten — converts an XFA (dynamic/static LiveCycle) form into a plain, static PDF with no XFA or AcroForm layer
• XFA to AcroForm — converts a static XFA (LiveCycle) form into a plain, fillable AcroForm PDF by stripping the XFA layer
• PDF Rasterize — renders pages to images and rebuilds the PDF, with optional MRC compression
• PDF Optimization — audits a PDF's space usage and applies MRC or general optimization via the Foxit Optimization Add-On (uploaded files processed on the Linux backend are deleted as soon as processing completes)
• PDF Remove Security — strips passwords and permission restrictions from a PDF (any password you provide is used to open the PDF and then discarded with the rest of the session)
• TIFF to PDF — converts a (possibly multi-page) TIFF to PDF, with optional MRC compression
• Foxit Conversion — converts an uploaded Word document (.docx/.doc) to PDF via the Foxit Conversion SDK, Microsoft Word, or LibreOffice
• Certificate-Based Digital Signatures — documents you sign are sent to the server so the signature can be computed and verified with OpenSSL; each request is processed in temporary files that are deleted before the response is sent, and nothing is retained
• PDF Password Recovery — a local-network-only tool that recovers a PDF's lost open password; the server extracts only the file's password hash and the PDF itself is never stored, the hash is handed to John the Ripper on a machine on the home network, and the whole job (hash included) is deleted within an hour

Uploaded files are not read by a human, indexed, OCR'd for analytics, or used for any purpose other than producing the result you see in the demo. Outputs wait on the server until you download them and are deleted on the schedule above, whether or not you download them.

Downloads of results made from your own documents are limited, currently to 10 per demo every 7 days; results from the demos' sample documents are unlimited. To apply that limit and keep a record of how the demos are used, the server logs each result it produces and each download: the time, the demo, the file name and size, your IP address, a random browser identifier and your browser's user-agent string. Your document itself is not part of that record. The log is kept for 13 months and then deleted. Usage figures from it may be shared with Foxit, the maker of the SDK the demos run on, if it asks to confirm how the demos are used; any figures shared will not include IP addresses.

FileShare

Files uploaded to FileShare are stored temporarily on the server so you can share a link to them. They are automatically deleted within 24 hours of link expiration.

Notarized Signing Sessions

The Notarized Signing Sessions demo stores the working PDF document, the names participants join with, and the demonstration signing certificates issued in those names on the server for the duration of the session. All of this — document revisions, certificates and private keys, and session data — is automatically deleted within 24 hours. As in the demo above, signing and verification send document bytes to the server for OpenSSL processing in temporary files that are deleted per request.

Meeting Planner

The Meeting Planner tool stores meeting data—including names, email addresses, and availability—on the server. This data is automatically deleted 24 hours after the last meeting date. If the organizer schedules a time, the email addresses provided by respondents are used to send them a calendar invitation (and, if the organizer opts in, to notify the organizer of new responses); addresses are never shown to other participants.

No Advertising or Tracking

There is no advertising, analytics tracking, or revenue generation of any kind associated with this site. No third-party scripts are loaded to monitor your behavior.

No Data Sharing

User data is never sold, rented, or shared with any third party for advertising, analytics, or any commercial purpose. The only exceptions are our email delivery provider, which processes the address you give us solely to deliver the messages described above, and the demo usage figures described above, which may be shared with Foxit without IP addresses.

Cookies & Local Storage

This site uses browser localStorage to remember your preferences, such as theme settings and game progress. This data is stored locally on your device and is never transmitted to any server. The PDF demos also set one functional cookie, jb_dq, holding a random identifier so the download limit can apply to your browser. It contains no personal information, isn't used for advertising or cross-site tracking, and expires after 90 days. The site does not use tracking cookies.

Contact

If you have any questions about this privacy policy, you can reach Jeff Brand via LinkedIn.